Nursing Elites

1. In the Gram Stain procedure, which component acts as the mordant?

• A. Crystal violet
• B. Methyl alcohol
• C. Iodine
• D. Safranin

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

2. An Asian-American woman is experiencing diarrhea, which is believed to be "cold"? or "yin."? What should the nurse recognize that the woman may likely try to treat it?

• A. Foods that are "hot"? or "yang"?
• B. Readings and Eastern medicine meditations
• C. High doses of medicines believed to be "cold"?
• D. No treatment because diarrhea is an expected part of life.

Correct answer: A

Rationale: In this scenario, the Asian-American woman is believed to be experiencing diarrhea due to a "cold"? or "yin"? imbalance. According to the yin/yang theory, yang represents heat and yin represents cold. Therefore, to balance the cold nature of the diarrhea, the woman may try to treat it by consuming foods that are considered "hot"? or "yang"?. This aligns with the concept that cold foods are eaten with a hot illness, and hot foods are eaten with a cold illness. Choices B, C, and D do not align with the yin/yang theory and are not relevant to addressing the imbalance associated with the cold nature of the diarrhea.

3. Which of the following is a negative outcome associated with impaired mobility?

• A. Increased amounts of calcium are absorbed from circulation
• B. A drop in blood pressure occurs when rising from a sitting to a standing position
• C. The amount of mucus in the bronchi and lungs decreases
• D. The vessel walls of the circulatory system thicken

Correct answer: B

Rationale: A client with impaired mobility may develop changes in body systems that put them at risk of further illness or injury. One negative outcome associated with impaired mobility is orthostatic hypotension, where blood pressure drops significantly when moving from a sitting or lying position to a standing position. This drop in blood pressure can lead to symptoms such as dizziness or fainting. This occurs because blood circulates more slowly or pools in the distal extremities due to impaired mobility. Choice A is incorrect because increased calcium absorption is not a typical negative outcome associated with impaired mobility. Choice C is incorrect because a decrease in mucus in the bronchi and lungs is not a common negative outcome of impaired mobility. Choice D is incorrect because thickening of vessel walls in the circulatory system is not directly associated with impaired mobility.

4. What are Korotkoff sounds?

• A. Sounds noted during diastole.
• B. The result of the vibration of blood against artery walls while blood pressure readings are being taken.
• C. Sounds only noted by skilled cardiologists.
• D. Distinct sounds which are classified into 6 phases.

Correct answer: B

Rationale: Korotkoff sounds are the sounds that occur when blood flows in an artery that has been temporarily compressed during a blood pressure measurement. These sounds result from the vibration of blood against the artery walls as the pressure cuff is released. There are five distinct phases of Korotkoff sounds, which healthcare providers are trained to identify during blood pressure assessment. The correct answer, choice B, accurately describes the nature of Korotkoff sounds and how they are generated. Choices A, C, and D are incorrect because Korotkoff sounds are not specific to diastole, not limited to skilled cardiologists, and categorized into five phases, not six.

5. While auscultating heart sounds, the nurse hears a murmur. Which of these instruments would be used to assess this murmur?

• A. Electrocardiogram
• B. Bell of the stethoscope
• C. Diaphragm of the stethoscope
• D. Palpation with the nurse's palm of the hand

Correct answer: B

Rationale: The correct instrument to assess a murmur while auscultating heart sounds is the bell of the stethoscope. An electrocardiogram is used to measure the heart's electrical activity, not to assess murmurs. Palpation with the nurse's palm of the hand is a method to assess pulses or textures, not heart murmurs. The diaphragm of the stethoscope is typically used for high-pitched sounds like breath, bowel, and normal heart sounds, whereas the bell is more suitable for soft, low-pitched sounds such as murmurs or extra heart sounds.

Similar Questions